Sulfide-type compound particles microparticulated, having an argyrodite-type crystal structure, and including lithium (Li), phosphorus (P), sulfur (S), and a halogen (Ha). As sulfide-type compound particles that can inhibit generation of hydrogen sulfide gas even upon contact with moisture in the atmosphere, provided are sulfide-type compound particles having D50 in a volume-basis particle size distribution of 50 m or less and having an occupancy of sulfur (S) and the halogen (Ha) in the S3 (4a) site, as calculated by a neutron diffraction measurement, of 85% or more.

Described herein are methods for the bromine-facilitated synthesis of fluoro-sulfur compounds, that include SF.sub.4, SF.sub.5Cl, SF.sub.5Br and SF.sub.6. The methods described herein generally require lower temperature and pressure, produce higher yields, require less time, do not use corrosive or costly reactants and solvents that are commonly used in the synthesis of the fluoro-sulfur compounds, and do not produce deleterious waste products when compared to previously-used methods.

Various embodiments are directed to a method of utilizing an imaging system for detecting a greenhouse gas such as sulfur hexafluoride. The method may include (1) generating, by a first thermal camera coupled to a robotic platform, a static image of a scene utilizing a first spectral filter for passing wavelengths within an SF6 absorption range, (2) generating, by a second thermal camera coupled to the robotic platform, an additional static image of the scene utilizing a second spectral filter for passing wavelengths outside of the SF6 absorption range, and (3) detecting the presence of SF6 in the scene based, at least in part, on the static image, the additional static image, and a difference between the static image and the additional static image.

A method for efficiently preparing sulfuryl fluoride by using sulfuryl chloride fluorination includes sulfuryl fluoride synthesis, where a solvent and a hydrogen fluoride complex are added to a reaction kettle, the reaction system is cooled to 10? C. or less, and sulfuryl chloride is then added dropwise under atmospheric pressure while the temperature of the reaction system is controlled to 60? C. or less to obtain sulfuryl fluoride.

The present invention relates to a method for producing a lithium halide compound, including performing a mixing heat treatment step of mixing lithium sulfide and an ammonium halide under a heating condition of 90 to 250? C., and which does not involve a step of directly removing water, does not use a simple substance halogen which is complicated to handle, can easily remove by-products, and does not require excessive energy for production.

The present invention relates to a method for producing a lithium halide compound, including performing a mixing heat treatment step of mixing lithium sulfide and an ammonium halide under a heating condition of 90 to 250? C., and which does not involve a step of directly removing water, does not use a simple substance halogen which is complicated to handle, can easily remove by-products, and does not require excessive energy for production.

An object of this invention is to provide a simple method for producing sulfur tetrafluoride. The object is achieved by a method for producing sulfur tetrafluoride, comprising step A of reacting a fluorinated halogen compound with sulfur chloride, the fluorinated halogen compound being represented by formula: XF.sub.n, wherein X is chlorine, bromine, or iodine; and n is a natural number of 1 to 5.

Described herein are methods for the bromine-facilitated synthesis of fluoro-sulfur compounds, that include SF.sub.4, SF.sub.5Cl, SF.sub.5Br and SF.sub.6. The methods described herein generally require lower temperature and pressure, produce higher yields, require less time, do not use corrosive or costly reactants and solvents that are commonly used in the synthesis of the fluoro-sulfur compounds, and do not produce deleterious waste products when compared to previously-used methods.

Described herein are methods for the bromine-facilitated synthesis of fluoro-sulfur compounds, that include SF.sub.4, SF.sub.5Cl, SF.sub.5Br and SF.sub.6. The methods described herein generally require lower temperature and pressure, produce higher yields, require less time, do not use corrosive or costly reactants and solvents that are commonly used in the synthesis of the fluoro-sulfur compounds, and do not produce deleterious waste products when compared to previously-used methods.

Diffusion and infusion resistant implantable devices and methods for reducing pulsatile pressure are provided. The implantable device includes a balloon implantable within a blood vessel of a patient, e.g., the pulmonary artery. The balloon is injected with a fluid mixture comprising a constituent fluid(s) and a diffusion-resistant gas to provide optimal balloon volume and limit fluid diffusion throughout multiple cardiac cycles. The fluid mixture may be pressurized such that the balloon is transitionable between an expanded state and a collapsed state responsive to pressure fluctuations in the blood vessel.